Update to Drupal 8.0.1. For more information, see https://www.drupal.org/node/2627402

core/modules/system/templates/dropbutton-wrapper.html.twig

@@ -7,7 +7,6 @@
  * - children: Contains the child elements of the dropbutton menu.
  *
  * @see template_preprocess()
- * @see template_preprocess_dropbutton_wrapper()
  *
  * @ingroup themeable
  */

core/modules/system/templates/menu-local-tasks.html.twig

@@ -9,9 +9,7 @@
  *
  * Each item in these variables (primary and secondary) can be individually
  * themed in menu-local-task.html.twig.
- *
- * @see template_preprocess_menu_local_tasks()
- *
+
  * @ingroup themeable
  */
 #}

core/modules/system/templates/page-title.html.twig

@@ -11,8 +11,6 @@
  * - title_suffix: Additional output populated by modules, intended to be
  *   displayed after the main title tag that appears in the template.
  *
- * @see template_preprocess_page_title()
- *
  * @ingroup themeable
  */
 #}

core/modules/system/templates/page.html.twig

@@ -19,11 +19,6 @@
  * Site identity:
  * - front_page: The URL of the front page. Use this instead of base_path when
  *   linking to the front page. This includes the language domain or prefix.
- * - logo: The url of the logo image, as defined in theme settings.
- * - site_name: The name of the site. This is empty when displaying the site
- *   name has been disabled in the theme settings.
- * - site_slogan: The slogan of the site. This is empty when displaying the site
- *   slogan has been disabled in theme settings.
  *
  * Page content (in order of occurrence in the default page.html.twig):
  * - messages: Status and error messages. Should be displayed prominently.

core/modules/system/templates/status-messages.html.twig

@@ -20,8 +20,6 @@
  * - attributes: HTML attributes for the element, including:
  *   - class: HTML classes.
  *
- * @see template_preprocess_status_messages()
- *
  * @ingroup themeable
  */
 #}

core/modules/system/templates/system-config-form.html.twig

@@ -5,8 +5,8 @@
  *
  * This template will be used when a system config form specifies 'config_form'
  * as its #theme callback.  Otherwise, by default, system config forms will be
- * themed by theme_form(). This does not alter the appearance of a form at all,
- * but is provided as a convenience for themers.
+ * themed by form.html.twig. This does not alter the appearance of a form at
+ * all, but is provided as a convenience for themers.
  *
  * Available variables:
  * - form: The confirm form.

core/modules/system/templates/tablesort-indicator.html.twig

@@ -6,8 +6,6 @@
  * Available variables:
  * - style: Either 'asc' or 'desc', indicating the sorting direction.
  *
- * @see template_preprocess_tablesort_indicator()
- *
  * @ingroup themeable
  */
 #}